Accession Number:

ADA440141

Title:

Parameter Estimation Techniques for a Class of Nonlinear Hysteresis Models

Descriptive Note:

Corporate Author:

NORTH CAROLINA STATE UNIV AT RALEIGH CENTER FOR RESEARCH IN SCIENTIFIC COMPUTATION

Personal Author(s):

Report Date:

2005-01-01

Pagination or Media Count:

16.0

Abstract:

This paper addresses the development of parameter estimation techniques for a class of models used to characterize hysteresis and constitutive nonlinearities inherent to ferroelectric, ferromagnetic and ferroelastic materials employed in a wide range of actuators and sensors. These models are formulated as integral equations with known kernels and unknown densities to be identified through least squares techniques. Due to the compactness of the integral operators, the resulting discretized models inherit ill-posedness which must be accommodated through regularization. The accuracy of regularized finite-dimensional models is illustrated through comparison with experimental data.

Subject Categories:

  • Operations Research
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE